Re: Update quickfix list, recall vimgrep expression

On Aug 17, 10:14 am, Paul <paul.domas...@gmail.com> wrote:
> On Aug 17, 1:44 am, "Christian Brabandt" <cbli...@256bit.org> wrote:
> > On Wed, August 17, 2011 4:00 am, Paul wrote:
> > > I am using Vim 7.3 on Windows 7 Enterprise 32-bit.
>
> > > I'm use the quickfix list a lot with vimgrep.  I swap between lists by
> > > the :cold and :cnew commands.  However, after much editing, the lists
> > > get out-of-date.  When I cruise between lists, I often forget the
> > > vimgrep expression, and the command history q: doesn't help after much
> > > editing and flipping between lists.  Is there a way to: (1) recall the
> > > vimgrep expression associated with the currently viewed quickfix list,
> > > and (2) refresh the list by effectively redoing the vimgrep?  For #2,
> > > I can see advantages and disadvantages to putting the repeated vimgrep
> > > onto the command history as a new entry.
>
> > I think since Vim 7.3 the quickfix window should always have the variable
> > w:quickfix_title set which contains the command that created this list.
> > Unfortunately, until at least patch 7.3.280 that variable wasn't always
> > updated so often did contain only the first command, but that patch
> > should have fixed that.
>
> > The $VIMRUNTIME/ftplugin/qf.vim should also set the statusline in the
> > quickfix window to display that variable.
>
> > Assuming you have been in the quickfix window before and are now in
> > another window, something like that should be possible to redo
> > the command, that created the quickfix window:
>
> > :exe getwinvar(winnr('#'), 'quickfix_title')
>
> OK, thanks, Christian.  Many new vim concepts (to me) in that
> example...I'll explore it further.

I sourced that file manually. I can't say that I understand it all,
but the most relevant line seems to be

setlocal stl=%q%{exists('w:quickfix_title')?\ '\ '.w:quickfix_title\ :
\ ''}

In any case, it seems to require that the cursor doesn't *have* to be
in the quickfix window prior to sourcing the file, but the statusline
doesn't update until I re-issue ":copen".

It helps alot....being greedy, I was wondering:

Is there a simple way to get the statusline to update automatically?

Also, short of placing an source command in .vimrc, is there a way to
ensure that this plugin runs automatically? I mean something more
elegant than dropping it in my vim/plugin/ directory. My runtime path
already "c:\Program Files\Vim\vim73". The full path of the plugin is
"c:\Program Files\Vim\vim73\ftplugin\qf.vim". It should load already,
but doesn't seem to.

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